Originally Posted by JSWolf
I do think that ePub will be that format.
It's got a shot, but the whole no defined DRM could hinder it. It could get quite confusing, especially for the less technical folks who will help ebooks grow beyond what they are now, if we all of the sudden have Adobe epub, eReader epub, Mobi epub, etc. Unless by some miracle ADE and other readers are able to decode all the various DRM schemes and not just their own.